Telephone booth door structure



y 1940- P. H. SHERRON 8,

TELEPHONE BOOTH DOOR STRUCTURE Filed Jan. 13, 1 957 3 Sheets-Sheet lJuly 16, 1940. P. H. SHERRON TELEPHONE BOOTH DOOR STRUCTURE Filed Jan.13, 1937 3 Sheets-Sheet 2 l r'cuya/ 545:2070]? W/f/VESS. @grfZJZ July16, 1940. SHERRON 2208,166

TELEPHONE BOOTH DOOR STRUCTURE Filed Jan. 13, 1937 3 Sheets-Sheet 3 v II Q x \If V I VAVIIIIIIIIJIIII Patented July 16, 1940 UNITED STATESFATENT OFFlCE 2,208,166 V TELEPHONE BOOTH DOOR STRUCTURE Percival H.Sl1erron, Jamaica, .N. Y. Application January 13, 1937, Serial No.120,324 3 Claims. (c1. 20- 20) This invention relates to an improvedform of telephone booth door structure.

It has heretofore been customary to provide telephone booths withfolding leaf doors in which the leaves were of unequal width. This wasconsidered necessary because of the friction developed in the door pinand door hinge.

In accordance with this invention there is provided a telephone boothdoor structure which makes possible the use of even width leaves in thedoor with consequent greater ease of fabrication and assembly andimproved appearance. Many other advantages in appearance, ease ofoperation and cost and ease of fabrication are possessed by the improveddoor assembly in accordance with this invention.

These advantages and the details of construction by means of which theyare obtained may best be described in connection with the accompanyingdrawings, which show preferred embodiments of my invention.

In the drawings:

Fig. l is a perspective view of a telephone booth in which the inventionis embodied.

Fig. 2 is a detail view, partly in section, showing one form of hingeconstruction in accordance with my invention.

Fig. 3 is a detail view of a modified form of hinge construction. v

Fig. 4 is a perspective View, partly in section, shown, partlydisassembled, the several structural elements of which my improved dooris formed.

Fig. 5 is a vertical sectional partial view through a booth showing thedoor assembly.

Fig. 6 is a detail view showing the guiding means for the door, and

Fig. '7 is a detail view of a door hinge showing an electric switchconnected thereto.

A telephone booth I, which may be of any conventional design, but whichpreferably will be of the type disclosed and claimed in my Patent No.2,176,980, dated October 24, 1939, has front wall portions 3 formingdoor jambs to one of which is secured by means of hinges 5 the foldingleaf door 1. This door, as shown in Fig. 1, has two leaves 9 of evenwidth hinged together at H and carrying glass panels l3. Adjacent thehinge on the inner side of the door is a handle |4.

Each leaf 9, is shown in Fig. 4, is formed by securing together,preferably by welding, a plurality of preformed, double-walled hollowmetal sections. The central portions of each leaf 9 consists ofrectangular sections l5, I], which are formed by bending flanges H3 atright angles around the edges of two panels of sheet metal,

of suitable dimensions, telescoping the panelsand welding th flangestogether at I 9. The hollow column members 2|, forming the outer edge'of each lead, are made. in the same manner by telescoping two pieces ofsheet metal of channel 5 cross section and welding together thecontacting flanges 23 at 25. Top and bottom plates 26 are then welded inplace to close the open ends. Y

The column members 21, 21a, forming the inner or adjoining edge of eachleaf, are formed by blanking out a single piece of sheet metal ofsuitable dimensions, forming right angle flanges 29 along the long edgesof the blank, bending the blank centrally about its longer axis over a1.) form, so as to form integral hinge pole sections 3|, Sla and insetsections 33, until the flanges 29 are superimposed, and welding theflanges together at 35. Simple cover pieces 3! and cover pieces '39carrying a bushing 4| are ultimately go welded in place at the top andbottom of the column members to close them.

The various body sections are then assembled in the position shown inFig. 4 and united by welding the contacting portions. A window frame 43is secured in place bounding the open ing between. sections l5 and I1,and 23 and 21;

If desired, the hollow spaces in the door assem bly, particularly withinsections I5 and I1, may be filled with a sound proofing material.

In Fig. 3 there is shown a modified form of door structure, in which thecolumn members 21' at the adjoining edges of the leaves are formedwithout an integral hinge pole, and sections of cylindrical tubing 45and bushing lugs lll'are r welded to the face 49 of the columns toprovide the hinge elements.

As shown in Fig. 4, the hinge pole sections 3|, 3|a are offset on theadjoining edges of the leaves 9 of the door. In hinging the two leavesof the door, a phosphor bronze or other suitable pin bearing 5| ispositioned in the upper end of hinge pole 3|, in which it is a forcefit, and in the lower end of hinge pole 3|a. The pin members am of thesebearings are received in bushings 4! carried on plates 39 ultimatelysecured at the top of column 210. and bottom of column 27. A similarbearing is forced in place in the lower end of hinge pole 3|, while abushing 52 is placed in the upper end of hinge pole 3|a in which it is aforce fit. These several bearings and bushings will, of course, besecured in place and the pins 5|a positioned in bushings 4| before theplates 39 are welded in place.

In Fig. 2 there is shown a modified form of 55 9 adjacent its'free edgeis a bracket memberE'I (see Figs. 5 andfi). A pin 59 rises from bracket51 above the level of the upper edge of the door. and carries twoflanges or collar members 6 I, one adjacent its upper end, the othernear its lower end. Secured between the collars 6l-,.but. free to rotateare a plurality of rollers 63. Secured on brackets 65 or by othersuitable means fixed to the booth walls and extending across the frontof the booth just above -the level of the upper edge of the door isatrack 67, the direction of ;which is that. of the motion of pin 59 asthedoorl moves from open to closed position.

The track 611 min. the, form of an inverted channel section; and theflanges 69 thereof are spaced justsufficiently to receive the assemblyof rollers 63-. Gonsequently as the door is-opened or closed the. rollerassembly travels along. the track. El,

the rollers 63 rotating freely and so minimizing friction: l

- Secured to one of. the hinge elements of one of thexhinges 5. so as tobe. rotatable by the opening and closing of door I is astud. 'H'.Connectedvjto said; stud H by means of flexible coupling 13 and collar15: so as to be rotatable therewith is a. cylinder: switch element 11which is secured to a: wall of the booth above the door level by means(not shown) which will permit its free rotation. The: body of cylinder11. is made of fibre or: other non-conducting material, but an insert19. of. metal" or other" electrical conducting material extends overits; outer surface throughout:..anarc of perhaps b5. Mounted on the wallof? the booth adjacent theelement 11 are a pair of spring: contact: arms81: which-are interposed inx one side of the electric circuit leading tothe light, fan, etc. with. which. the booth may be provided. i

With the booth door I in open position the contact arms 8| will rest onthe non-conducting surface of the cylinder ll, the circuit will bebroken and the lights and fan will not operate. When, however, the boothdoor is closed, as it will be when the booth is in use, the cylinder 11will have been rotated by means of hinge 5 and connector 13 so that thecontact arms 8| rest on the metal insert 19, as shown in Fig. '7, thuscompleting the. circuit to the lights and fan.

What I claim and desire to protect by Letters Patent is:

l. A telephone booth door having two leaves hinged to each other, eachleaf having an outer column and a hinge column, the outer columns beingformed of two telescopic channel members, the flanges of the channelsbeing welded to each other to form double thickness edge walls,

the hinge columns being formed of a single sheet bent to form hinge polesections, the endsof the sheet being bent to: form overlapping flanges.

the full thickness of the column, said flanges being welded to eachother to form double thickmess-walls, and upper-and lower cross railswelded to the inner faces of. the columns of each. leaf.

2. A telephone booth door having two leaves hinged to each. other, eachleaf having an outer column and, a hinge column, the outer columns beingformed of two telescopic channel members,

the flanges of the channels being welded to each other to form doublethickness edge walls, the

hinge columns being formed of a single sheet bent to formhinge' polesections, each of which extends approximately half the length of saidhinge columns incomplementary relationship to the other, the ends ofsaid single sheet being bent to form overlapping flanges the fullthickness of the column, saidflanges being welded to each othertoiormdouble thickness walls, and

upper and lower crossrai-ls welded: to the inner faces of the columns ofeach-leaf.

3. A'telephone booth door as described in claim 2, additionallycharacterized by the fact that the hinge pole sections are engaged witheach other by an anti-friction bearing assembly.

PERCIVALH. SHERRON.

